by Skywatcher » Fri Nov 08, 2019 1:13 am
Hi Dennis
This is why I said to start with the engine on TDC compression stroke, so both valves are closed. What I wasn't thinking of was the automatic compression release system and how the rope may be putting pressure on the ACR lifter. BG has a good idea, just pop the push rods out, then you know for certain that both valves are completely closed and you won't be forcing any pressure back down the valve train.
As for pressure on the piston, by turning the engine back a little beyond ¼ turn, you should be able to get enough rope into the cylinder so the crank throw is approximately 90º to the cylinder. This will give the least amount of pressure on the piston for the maximum amount of torque on the crankshaft. Think about it, when you're using a torque wrench, your arm or line of pull should be perpendicular, or at 90º to the shaft of the torque wrench. This gives you maximum amount of torque with the least amount of pull. Hope this makes sense,
Sky
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